body{
    font-family: Arial, Helvetica, sans-serif;
    margin: 0;
    padding: 0;
    background-color: #e0f7f6;
    color: #333
}

header{
    background-color: #0077b6;
    color:white;
    text-align: center;
    padding: 20px;
    margin-top: 170px;
}

header h1 {
    margin: 0;
    font-size: 28px;
}

main{
    max-width: 900px;
    margin: 20px auto;
    padding: 20px;
    background: white;
    border-radius: 8px;
    box-shadow: 0 2px 5px rgba(0,0,0,0.1);
}

section h2{
    color:#005f73;
    border-bottom: 2px solid #0077b6;
    padding-bottom: 5px;
    margin-bottom: 10px;
}

section p{
    font-size: 16px;
    line-height: 1.6;
    margin: 0;
}

@media (max-width:600px) {
    main {
        padding:15px;
    }

    section {
        padding: 10px;
    }

    header h1 {
        font-size: 24px;
    }

    section h2 {
        font-size: 20px;
    }

    section p {
        font-size: 14px;
    }
}